1,720,968 research outputs found
Agenesis of the gallbladder
No full textAgenesis of the gallbladder is a rare anomaly that is usually asymptomatic, but
sometimes the patients may have symptoms compatible with a biliary disorder like
cholelithiasis. Its preoperative diagnosis is often difficult, especially if
dysplastic cyst is associated and simulates the gallbladder. When the diagnosis
is doubtful its confirmation and treatment of dysplastic cyst require open
surgery, careful dissection of the common bile duct to avoid biliary lesions and
intraoperative ultrasonography or cholangiography to be performed to exclude
other associated anomalies. The Authors describe the case of agenesis of
gallbladder and dysplastic cyst associated and comment on its clinical,
diagnostic, and therapeutic aspects
Tumoral calcinosis: a case report.
No full textTumoral calcinosis is a rare tumour-like mass characterized by soft tissue
calcification of obscure aetiology. A case of tumoral calcinosis is presented
here, and its clinical, radiological and pathological features are described. The
differential diagnosis versus hydatid cyst is discussed. Diagnosis is possible
with imaging techniques but histopathological study is essential to establish it
with certainty. Complete surgical excision appears to be the only effective
treatme
Ecographic evaluation of the vitality/fertility in the hepatic hydatidosis as indication for pericistectomy].
No full text[
. May-Jun;():
Authors:
Abstract
Hepatic hydatidosis is still now a frequently observed pathology and the total pericistectomy, for surgical difficulties, often request a subtotal pericistectomy with complications such as biliary fistula, haemorrhage and subphrenic abscesses. The Authors reconsidered their hepatic hydatidosis cases to evaluate the indication to the surgery that in their opinion, should have to consider first of all the functional state of the cysts. Infact, only the vital and the fertil ones, less frequent even if rarely found, should have indications to the surgery, because more likely complicated. The dead and steril ones, instead being asymptomatic, should go under periodic control, since destined to degeneration and calcification. Are also compared the pre-surgery data with the parasitologic exam, to evaluate ETG reliability to determine the functional state of the cyst. Twenty one cysts out of 76 were operated correctly because vital/fertile and in 19 of these the ultrasound indications were correct (90.5%). 55 didn't have indications to the surgery since dead/steril and for 51 (92.7%) the ultrasound indication was correct. So we can say that morphological ultrasound data permitted a correct surgery indication for 70 cyst's on their functional state (93.4% of total). In this way the post-operative complication were reduced of 5%. The Authors found morphologic and/or functional ultrasound error for 6 cysts (7.9%), and in only 3 cases (3.9%) the error were both morphological and functional Infact we believe that a ultrasound morphologic classification should have a functional corrispective for the surgical indication So only the unilocular and multivescicular cysts, vital and fertil one, should have indication to the surgery. On the contrary the solid ones should have an ultrasound follow up and treated by chemotherapy if necessary.
PMID: [PubMed - indexed for MEDLINE
[Dysplastic cysts of the liver: our experience].
No full textAIM: Systematic surveys with advanced non-invasive imaging techniques have
revealed that hepatic cysts are quite common in the general population.
Therefore, we retrospectively examined our case series and compared it with the
literature.
METHODS: Between January 1990 and December 2000, 228 patients with non-parasitic
liver cysts were referred to the outpatients section of the Department of Surgery
of the University of Cagliari and 23 were submitted to treatment: 14 patients
(60.8%) for solitary cyst and 9 (39.2%) for multiple simple cysts of the liver.
One patient (4.5%) had right upper quadrant pain. Eleven (47.8%) patients were
asymptomatic: 7 (63.7%) required treatment for other pathologies, 3 (27.3%) for a
progressive enlargement of the cyst and 1 (9%) for a suspected hydatid disease.
Mean diameter of the treated cysts measured by preoperative CT or US was 8.8 cm
(range 7-14). Percutaneous aspiration-injection reaspiration (PAIR) was performed
in 5 patients (21.7%), US-guided in 2 cases (40%) and CT-guided in 3 (60%).
Twenty patients (86.9%) underwent cysts unroofing, 18 (78.2%) with open surgical
fenestration and the latest 2 cases with a laparoscopic approach. Two patients
had PAIR as second treatment for recurrence: CT-guided in one and US-guided in
the other case.
RESULTS: Four (25%) out of 16 patients treated exclusively for cystic liver
disease, had fever in 3 cases and nausea and vomiting in 1 case; 8 patients (50%)
had an intraperitoneal drainage for a mean of 6-7 days (range 4-11) and of 116 cc
of serum-hematic liquid.
CONCLUSIONS: In our opinion the choice of an adequate treatment must be based on
an accurate evaluation of the clinical aspects of the patients and on the
characteristics of cystic lesions such as number, size and location. These data
let us to choose a surgical treatment rather than a strict US follow-up and to
get the best outcome in terms of absence of recurrence, and less biological and
economic costs
Biliary complications of laparoscopic cholecystectomy: our experience compared with laparotomic cholecystectomy
No full text[].
. Jun-Jul;():
Authors:
Abstract
Major bile ducts injuries during cholecystectomy were one of the most common complications, but they were becoming rare. With the introduction and the fast diffusion of laparoscopy their incidence has increased. For this reason we have reviewed our experience about open and laparoscopic cholecystectomy. We report 18 patients, 8 male and 10 female with age ranged from 27 to 73 years, with common bile duct injuries. Only three patients (20%) underwent surgery in our Department of Surgery of the University of Cagliari. Of these patients, two were operated on open and one laparoscopic cholecystectomy. They represent 0.08% and 0.36% of the respective groups. The most common cause of this complication is peritonitis (94.5%), followed by bleeding and congenital anomalies of the biliary tree, that were present in 5.5% respectively. The conversion to laparotomy was necessary in 3.9% of our patients, while residual choledocholithiasis in one patient was treated by laparotomic reexploration because of the unsuccessful ERCP. In summary in our opinion the prevention of this complication depends on appropriate indication and choice of the patients, as well as an adequate training. The ERCP, if indicated, must be done before laparoscopic cholecystectomy.
PMID: [PubMed - indexed for MEDLINE
[Bacterial control in the operating room].
No full textThirty-nine patients with liver tumours have been submitted to regional arterial
chemotherapy by means of either totally implantable Infusaid-400 pumps (22 c.) or
implantable ports (17 c.). The latter were subsequently perfused with external
pumps. There was one single major operative complication and no operative deaths.
Most patients underwent continuous Fudr infusion. Access related complications
occurred in both groups. Treatment was stopped for access related complications
in 18.4% and 29.4% of cases out of the pump and port groups respectively. In most
of those cases, however, several cycles of chemotherapy had already been
performed. The Infusaid-400 pumps showed a 12-month functional duration of 57%
with a 13-month median, the 10-month duration of ports being 67%. The difference
was not significant. The new implantable systems give better results in
comparison with traditional regional access methods, the functional performances
of the port systems appearing very similar to the totally implantable pumps, with
an obvious advantage for the pumps as far as quality of life is concerned
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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